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alistair23-linux/crypto
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Herbert Xu 2a57e4241e crypto: drbg - Do not seed RNG in drbg_kcapi_init 
Initialising the RNG in drbg_kcapi_init is a waste of precious
entropy because all users will immediately seed the RNG after
the allocation.

In fact, all users should seed the RNG before using it.  So there
is no point in doing the seeding in drbg_kcapi_init.

This patch removes the initial seeding and the user must seed
the RNG explicitly (as they all currently do).

This patch also changes drbg_kcapi_reset to allow reseeding.
That is, if you call it after a successful initial seeding, then
it will not reset the internal state of the DRBG before mixing
the new input and entropy.

If you still wish to reset the internal state, you can always
free the DRBG and allocate a new one.

Finally this patch removes locking from drbg_uninstantiate because
it's now only called from the destruction path which must not be
executed in parallel with normal operations.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Stephan Mueller <smueller@chronox.de>
2015-04-21 10:19:53 +08:00
..
asymmetric_keys Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2014-10-12 10:13:55 -04:00
async_tx dmaengine: fix xor sources continuation 2014-08-21 10:20:52 -07:00
842.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
ablk_helper.c crypto: cryptd - process CRYPTO_ALG_INTERNAL 2015-03-31 21:21:04 +08:00
ablkcipher.c crypto: replace scatterwalk_sg_next with sg_next 2015-01-26 11:34:22 +11:00
aead.c crypto: aead - fixed style error in aead.c 2014-12-22 23:02:35 +11:00
aes_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
af_alg.c crypto: af_alg - make exports consistant 2015-04-01 15:32:20 -04:00
ahash.c crypto: replace scatterwalk_sg_next with sg_next 2015-01-26 11:34:22 +11:00
algapi.c crypto: fix broken crypto_register_instance() module handling 2015-04-15 20:26:16 -07:00
algboss.c
algif_aead.c crypto: fix mis-merge with the networking merge 2015-04-15 14:09:46 -07:00
algif_hash.c new helper: msg_data_left() 2015-04-11 15:53:35 -04:00
algif_rng.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-04-15 10:42:15 -07:00
algif_skcipher.c new helper: msg_data_left() 2015-04-11 15:53:35 -04:00
ansi_cprng.c crypto: rng - RNGs must return 0 in success case 2015-03-09 21:06:18 +11:00
anubis.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
api.c crypto: api - prevent helper ciphers from being used 2015-03-31 21:21:03 +08:00
arc4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
authenc.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
authencesn.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
blkcipher.c crypto: allow blkcipher walks over AEAD data 2014-03-10 20:17:11 +08:00
blowfish_common.c
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
camellia_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast5_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast6_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast_common.c
cbc.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
ccm.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
chainiv.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
cipher.c
cmac.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
compress.c
crc32.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
crc32c_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
crct10dif_common.c
crct10dif_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cryptd.c crypto: cryptd - process CRYPTO_ALG_INTERNAL 2015-03-31 21:21:04 +08:00
crypto_null.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
crypto_user.c crypto: user - Fix crypto_alg_match race 2015-04-08 22:20:06 +08:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-03-21 21:54:28 +08:00
ctr.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
cts.c crypto: cts - Weed out non-CBC algorithms 2015-01-20 14:44:15 +11:00
deflate.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
des_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
drbg.c crypto: drbg - Do not seed RNG in drbg_kcapi_init 2015-04-21 10:19:53 +08:00
ecb.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
eseqiv.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
fips.c
gcm.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
gf128mul.c
ghash-generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
hash_info.c
hmac.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
internal.h
Kconfig crypto: serpent_sse2 - Fix a typo in Kconfig 2015-04-07 21:34:20 +08:00
khazad.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
krng.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
lrw.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
lz4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
lz4hc.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
lzo.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
Makefile crypto: algif - enable AEAD interface compilation 2015-03-04 22:12:39 +13:00
mcryptd.c crypto: mcryptd - process CRYPTO_ALG_INTERNAL 2015-03-31 21:21:13 +08:00
md4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
md5.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
memneq.c crypto: memneq - fix for archs without efficient unaligned access 2013-12-09 20:09:12 +08:00
michael_mic.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
pcbc.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
pcompress.c
pcrypt.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
proc.c crypto: proc - identify internal ciphers 2015-03-31 21:21:04 +08:00
ripemd.h
rmd128.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd160.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd256.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rmd320.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
rng.c
salsa20_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
scatterwalk.c crypto: replace scatterwalk_sg_next with sg_next 2015-01-26 11:34:22 +11:00
seed.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
seqiv.c crypto: seqiv - Ensure that IV size is at least 8 bytes 2015-01-20 14:44:16 +11:00
serpent_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
sha1_generic.c crypto: sha1-generic - move to generic glue implementation 2015-04-10 21:39:40 +08:00
sha256_generic.c crypto: sha256-generic - move to generic glue implementation 2015-04-10 21:39:41 +08:00
sha512_generic.c crypto: sha512-generic - move to generic glue implementation 2015-04-10 21:39:41 +08:00
shash.c crypto: LLVMLinux: aligned-attribute.patch 2014-06-07 11:44:39 -07:00
tcrypt.c crypto: tcrypt - fix uninit sg entries in test_acipher_speed 2015-03-12 01:11:05 +11:00
tcrypt.h crypto: tcrypt - Added speed tests for AEAD crypto alogrithms in tcrypt test suite 2013-12-20 20:06:25 +08:00
tea.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
testmgr.c crypto: testmgr - use CRYPTO_ALG_INTERNAL 2015-03-31 21:21:03 +08:00
testmgr.h crypto: testmgr - add test for lz4 and lz4hc 2014-08-29 21:46:36 +08:00
tgr192.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
twofish_common.c
twofish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
vmac.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
wp512.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
xcbc.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
xor.c
xts.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
zlib.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00